Improvement in hubs for carriage-wheels



Y ).KRITCH. Improvement in Hubs for Carriage Wheels. No. 122,323. Patentedjamznsvz.

UNITED STATES PATENT OFFICE.

Improvements in Oarrage-VVheels, of which l follows:

` Said hub in part consists of two outer sections,

` Said by means of bolts or rivets b, whereby said I is fitted in the axle-box,

JACOB KRITGH, OF

IMPROVEMENT IN HUBS.FORUCARRIAGE-WHEELS.

Specification forming part of` Letters Patent No. 122,323, dated January '2, 1872.

To all whom it may concern v Be it known th at I, JACOB KRITCH, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful the following is a full and complete description, reference being had to the accompanying drawing making a part of this speciiication.

Figure 1 is a perspective view of the wheel. Fig. 2 is a side view. Fig. 3 is a transverse longitudinal section. Fig. 4 is a detached section. Fig. 5 is a detached view of the axle. Fig. 6 is an end view of the inner end of the hub.

Like letters of reference indica-te likeparts in the several views.

The nature of this invention relates to a carriage-wheel hub, and the object thereof is to secure said hub to the axle or spindle from the inner end by means of a screw-cap, passed on over the axle or spindle and screwed onto the end of the hub, substantially in the manner as The drawing, Fig. 1, represents the hub, having sections of the spokes inserted therein.

A B, both of which are provided with a broad circular iiange, C, between which the base of the spokes are clamped, whereas the tenons of the spokes are inserted in mortiscs in the wooden core D, Fig. 3, on which is snugly fitted the sections A B, referred to as shown in said Fig. 3, in which E are the spokes and c the tenons. sections A B are secured to each other, and in close contact with the sides of the spokes,

laterally in a substantial manner. In Fig. 3, F is the axle-box, in which the axle Gis iitted. H is the axle-collar; I, the enlargement before the collar; and J, the enlargement behind the colla-r. The enlargement whereas the enlargement J is litted in the screw-cap K, a detached view of which is shown in Fig. 4, in which it will be seen that it is provided with a female screw, K. The egllar H, referred to, is fitted in the end of the thimble or section B, onto which thimble is screwed the cap K by means of a male screw, B. The posterior side of said collar is flush with the side of the end of the thimble or section B, against which and the side of the collar the leather washer or packspokes are braced ing o, Fig. 3, is pressed by the bottom of the chamber c of the cap when said cap is screwed on, as shown in Fig. 3, the washer preventing contact of the two metalsthat of the posterior side of the collar and the inside of the cap-so that no frictional abrasion and noise will result from the connection of the wheel with the axle. Also, interposed between the anterior side of the collar and the end of the axle-box is a leather washer, ol, for the purpose specified of the washer c. Immediately within the end of the axle-boxis cut a chamber, L, Fig. 3, for the rctentionof the oil or grease for` lubricating the axle. M is a groove around the axle or spindle, for a similar purpose. The end of the axle is hollow and open, forming a chamber, which communicates with the outside by a small hole, e, in the bottom of a groove, f, Fig. 5. The purpose of the chamber is for the retention of oil for lubricating, and that of the groove f is to distribute it alongv the spin dle; hence the hub is self-oiling.

It will be obvious, from the drawing and the description thereof, that the wheel is retained upon the spindle by mea-ns of the screw-cap K, which is slipped on over the axle, and screwed onto the posterior end of the hub, as aforesaid, thereby holding and inclosing the collarH and washers ol c between itself and the end of the hub, making a neat and secure connection of the wheel to the axle, and which is so close fitting as to exclude dirt and dust from the axle-box; hence the wheel will run freely, true, and noiseless.

It will be observed thatt large diameter; it ually than one of small diameter, cause the wheel to run steadily, and with Vless liability to twist or wrench on the axle.

Claim. i What I claim as my invention, and desire to secure by Letters Patent, is

The screw-cap K and shellor thimble B, providedwith the screw B to receive said cap, and having a chamber, of the axle-box and cap K, to receive the large collar H, and washer c, when applied to wood.` en hubs, in the manner substantially as described, and for the purpose set forth.

JACOB KRITOH.

the collar H` is of therefore will, more effectc', between the back 

